TEM asbestos air sample results, NYC BOE, Apr 2002
Machine-extracted title · confidence 50%
Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 3, 2002.
GO. Structure Structure Type Length IO of Structure N or "7 EDS
No Amphibole Nonasb . {Nonadb
No J. Coord
F B C M >=05 p >=5p Chrys Ambig/ND
Elements)
<5m
J
Struct = > 0.5|i >5:1 Aspect Ratio Grid acceptance:
■7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
>/= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
Famphiboi^ Amphibole
F = Single Fiber I Amosite
B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous
C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos
Tremolite
M = Matrix Non-ldentified
Actinolite
NSD = No Structures Detected
CITY_21MC100_003092218
NYC-WTC_000192091
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NYC-WTC_000192091Source: NYC Law Department, mirrored locally
Laboratory record documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 3, 2002.
Laboratory record documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 3, 2002.
Laboratory record documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities on April 3, 2002.